无限级多选树型菜单（checkbox Tree）

[{"title":"（ 15 个子文件 10KB ） 无限级多选树型菜单（checkbox Tree）","children":[{"title":"treecheckbox","children":[{"title":"treecheckbox.files","children":[{"title":"treeCheckBox.0.2.js <span style='color:#111;'> 12.56KB </span>","children":null,"spread":false}],"spread":true},{"title":"images","children":[{"title":"P2.gif <span style='color:#111;'> 163B </span>","children":null,"spread":false},{"title":"M0.gif <span style='color:#111;'> 159B </span>","children":null,"spread":false},{"title":"L2.gif <span style='color:#111;'> 68B </span>","children":null,"spread":false},{"title":"book.gif <span style='color:#111;'> 128B </span>","children":null,"spread":false},{"title":"P1.gif <span style='color:#111;'> 166B </span>","children":null,"spread":false},{"title":"P0.gif <span style='color:#111;'> 163B </span>","children":null,"spread":false},{"title":"M1.gif <span style='color:#111;'> 163B </span>","children":null,"spread":false},{"title":"L4.gif <span style='color:#111;'> 69B </span>","children":null,"spread":false},{"title":"L0.gif <span style='color:#111;'> 66B </span>","children":null,"spread":false},{"title":"M2.gif <span style='color:#111;'> 159B </span>","children":null,"spread":false},{"title":"L1.gif <span style='color:#111;'> 73B </span>","children":null,"spread":false},{"title":"L5.gif <span style='color:#111;'> 58B </span>","children":null,"spread":false},{"title":"bookopen.gif <span style='color:#111;'> 148B </span>","children":null,"spread":false}],"spread":false},{"title":"treecheckbox.htm <span style='color:#111;'> 12.07KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]